ECM/ECU Buyer’s Guide
Every modern vehicle has an Engine Control Unit (ECU). Its job is to coordinate and manage the engine’s various complex systems. A faulty ECU can cause rough running and poor gas mileage and will eventually prevent your car from working at all.
This ECU buyer’s guide will cover everything you need to know. From common issues to diagnosis and replacement we have it all here. We’ll cover topics like:
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The Electronic Control Unit (ECU, aka Engine Control Module or ECM) manages just about every aspect of your engine. You are most likely reading this because your ECU is either faulty or has failed completely. And as you might have already found out, a broken ECU can leave you stranded by the roadside.



















